Sure, but from a business perspective, those users in Asia may also be harder to monetize, depending on your market and business model. Even Google apparently had issues monetizing China, for instance, cyber-warfare and censorship aside. But you're right, web startups should definitely be looking more to Asia these days.

I would suggest also contrasting Asia and North America's total populations. I suspect you'll find they vary by a larger constant than 3.

Exactly... a business plan focused on internationalization is more important now than ever.